Sulfur-burner.



P. H. GRIMM.

SULFUR BURNER.

APPLICATION FILED Nov. 17, 1909.

2 SHEETS-SHEET 1.

Patented May 10, 1910.

P. H. GRIMM.

SULFUR BURNER.

APPLIUATION FILED Nov.17,19o9.

Patented May 10, 1910.

2 SHEETS-SHEET 2.

PAUL H.-GEIMM, or GLEN covE,

co., or GLEN covE, NEW YORK,

`padding the necessary moisture .of the general type shown in Letters UNITED sTATEs PATENTI onirica.

NEW YO RK, ASSIGNOR TO THE SULPHUR DIOXIDE A CORPORATION F NEW YORK.

SULFUR-BURNER.

Specification of Letters Patent. Application med November 17, 1909.

To all whom it may concer/n:

Be it known that I, PAUL H. GRIMM, a citizen of the United States, residing at Glen Cove, in the county of Nassau and State of New York, have invented certain new and useful Improvements in Sulfur-Burners, of which the following is a specification.

My present invention has to do with apparatus for the production of sulfur di-oxid gas o n a commercial scale in quantities suitable for fire extinguishing, fumigating, disinfecting, etc. I have found that as ordinarily, heretofore produced this gas is effective only for fumigating and disinfecting when the humidity of the air with which it mingles is high or in the event that the humidit of the air is low, when moisture is urtical y added to such gas.

The prime object of my invention is to provide a simple and effective means for in any measured quantity needful to make up for the deficiency thereof in the atmospheric air at any particular time.

More specifically my improvements `consist in a moisture supplying device adapted to be applied to a sulfur burner apparatus Patent No. 924,980 -issued to me June 15, 1909, though itis manifestly not restricted to use with such a construction. In the present instance I have illustrated the said device in connection with a somewhat modified burner of the enetal type shown in said patent. The folbwing description therefore may be read in connection with that ofsaid patent for a more detailed settingv forth of the features of the burner itself. z

My invention will be clearly understood from the following description in connection with the accompanying drawings and the matters of novelty will thereafter be pointed out inthe appended claims.

Referring to said drawings wherein like reference characters designate the same parts in each of the several views: Figure 1 is a side elevation partly broken away in section nearly on the line I-I of Fig. 3.

Fig. 2 is a central vertical section on the line II-II of Fig. 3. Fig. 3 is a plan view. Fig. 4 is a horizontal section on line IV-IV of Fig. 1, and Fig. 5 is a detail vertical section through the steam generating apparatus. v

1, is an outer casing made watertight and within which is mounted a waterti htfire box 2. A tire pan 2', may be dispose at the bottom of the fire box to hold the burning sulfur. A door or opening 3, to the fire box is provided with any suitable closure shown as a screw cap 4, having glass or isinglass closed sight opening 4', and the fire box may have a proper center support as shown at 5. The space between the outer casing and the walls of the fire box forms a watertight jacket, water for this purpose being introduced at or near the bottom by a pipe G, and the same being discharged from an 'outlet 7, passages 6 are formed to allow the waterto circulate past the fire box.

A sulfur melting chamber and reservoir 8, depends from the top of the outer casing down into the iirebox, the same having a suitable closure cap 9, through which the sulfur supply may be replenished. A valve 10, is arranged to be manipulated by a rod 11, with a screw action or otherwise to close the bottom of the reservoir 8, indicated in the closed condition by dotted lines, or o en as shown in full lines to allow the mo ten sulfur to feed therefrom. y

A supply pipe 12 for air under pressure from a blower or the like leads tothe apparatus the same being controlled by a valve 1 3. A branch 14, om said pipe extends down into the re box adjacent the point of combustion. The sulfur di-oxid formed by the combustion is led of fromthe fire box 2, by a pipe 15, a continuation 16 of which leads downward adjacent the bottom of the casing l. A cooling coil 17, which it will be noticed lies adjacent the Water inlet 6, forms al continuation of said pipe 16, and therefrom an outlet 18, for the cooled sulfur di-oxid leads to the point of storage or consumption.

Thus far the apparatus described has the saine general characteristics as that ofl my patent above referred to and as the rationale of operation is fully set forth therein it is not deemed necessary to repeat the same here.`

Sulfur is introduced into the melting reservoir 8 While the valve ,10 is closed through the inlet, cap 9, being removed, and thereouter cylinder or reservoir 20 surrounds the pump and is preferably of glass so that the exact amount of the contents can be readily seen. Depending from the pump 20 is a small pipe 22, through which a determinate quantity of water may be forced down into the steam generator 23. This generator, (see Fig. 5,) is in the form of a tube with a closed lower end and the same extends down adjacent the point of combustion of the sulfur, so that the heat thereof vaporizes the water as it is forced down by the pump 20. The upper end of the generator 23, is secured to the support 19, and communicates with the hollow interior thereof. Therefrom a steam delivery pipe 24, controlled by a valve 25, is led to form a union at 20, with the sulfur di-oxid delivery pipe 18. A tubular casing 27 is connected with the fire box 2, and surrounds and is slightly separated from the upper section of the generator 23, thereby preventing the cooling water from coming 1n contact with the said generator, and at the same time increasing the heating surface ofthe generator by permitting the hot gas to circulate around it. It will thus be seen that in conjunction with the production of sulfur di-oxid in the manner set forth and as more minutely described in the patent referred to, I am enabled to add thereto any desired percentage of water vapor by merely supplying the necessary measured quantity o water to the pump. To illustrate, the average amount of moisture in air is four grains per cubic foot. Now if we assume that the minimum is two, and the maximum is 6 grains, and that at this latter point good results are obtained from gas made with air containing this amount of moisture, then it follows that if the humidity is such that the air only contains two grains of moisture per cubic foot and we wish to bring it up to six, we must evaporate four grains of water for each cubic foot or 4000 grains for each 1000 cubic feet and as there are 7000 grains of water in a pound wewould have to evaporate a little more than one half pint of water for each 1000 feet of gas.

Having now fullydescribed my invention, what I claim as new and desire to secure by Letters Patent is as follows:

1. A sulfur burner comprising a normally closed firebox, means for supplying combustible materials thereto, means for delivering gas therefrom and a steam generator heated by said combustible materials and constructed to supply a determinate quantity of steam to said gas.

2. Agas generating apparatus comprising a normally closed irebox, means for supplying combustibles thereto, a steam generating device extending within said rebox, and means for supplying' determinate quantities of water to said device. t

3. A gas generating apparatus comprising a normally closed iirebox, means for supplying air thereto, a sulfur reservoir supply, means for delivering gas therefrom, and a moisture supplying device the same extending adjacent the point of combustion and having a discharge into said gas delivery means. p U

4. Agas generating apparatus comprising a normally closed firebox, means for supplying air thereto, a sulfur supply therefor, means for delivering gastherefrom, and a moisture supplying device, the same consisting of a barrel extending adjacent to the point of combustion with means for forcing determinate quantities of water thereinto.

5. A gas generating apparatus comprising a normally closedcombustion chamber, andV a moisture supplying device disposed therein, said device consisting of a .steam generator, and means for forcing determinate quantities of water thereinto.

6. A sulfur burner comprising a rebox, means for delivering gas therefrom, a steam generator extending adjacent the field of combustion, means for feeding determinate quantities of water thereto and means for mingling the steam' generated with the gas delivered.

7. A sulfur burner comprisin a rebox; means for delivering gas there rom, means for passing the gas through a cooling coil, a steam generator extendin adjacent the field of combustion, means or feeding determined quantities of water. thereto and means for mingling the steam generated with the gas delivered, after the gas has passed through the cooling coil.

In testimony whereof I affix my signature in presence of two witnesses.

' PAUL II. GRIMM.

Witnesses:'

I-IENRY A. UTERHART, JAS W. HYDE. 

